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After months of traveling across a cratered plain, NASA's Mars Exploration Rover Spirit took this image of a large, continuous rock outcrop at the base of the "Columbia Hills." The image was taken on sol 189 (July 15, 2004) with the rover's rear hazard-avoidance camera. Spirit's left rear wheel is visible in the image, along with rocks that have a somewhat layered appearnce.

The rover drove over this area backward on five wheels -- a new strategy that will conserve the rover's sixth, aging wheel for those times when it is needed most. Spirit is on its way to the north-facing slope of the hills, where it can look at rock outcrop in more detail, using more solar power.

Persönlich bin ich immer bereit zu lernen, obwohl ich nicht immer belehrt werden möchte.:-)

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Persönlich bin ich immer bereit zu lernen, obwohl ich nicht immer belehrt werden möchte.:-)